Motion and Stability Study Guide

Front

What is a balanced force?

Back

A balanced force occurs when two equal forces push or pull in opposite directions, resulting in no movement. Example: Two people pushing a cart from opposite sides with equal force.

Front

What force causes a ball to fall to the ground when it is in the air?

Back

Gravity.

Front

What force causes a thrown ball to fall back to Earth?

Back

Strong gravitational force of the Earth.

Front

What is the force in the Solar System that is similar to the tension in a string when whirling an object?

Back

Gravitational force.

Front

What must be increased in sphere C to attract larger spheres A, B, and D?

Back

Increase the mass.

Front

Define gravity.

Back

Gravity is the force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is an unbalanced force?

Back

An unbalanced force occurs when two forces acting on an object are not equal, causing the object to move.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

Front

What is the relationship between mass and gravitational force?

Back

The greater the mass of an object, the stronger the gravitational force it exerts.